CN201959337U - Remaining needle assembly body - Google Patents
Remaining needle assembly body Download PDFInfo
- Publication number
- CN201959337U CN201959337U CN201020507247XU CN201020507247U CN201959337U CN 201959337 U CN201959337 U CN 201959337U CN 201020507247X U CN201020507247X U CN 201020507247XU CN 201020507247 U CN201020507247 U CN 201020507247U CN 201959337 U CN201959337 U CN 201959337U
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- China
- Prior art keywords
- pin
- needle
- interior
- needle interface
- base end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
- A61M25/0625—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard with a permanent connection to the needle hub, e.g. a guiding rail, a locking mechanism or a guard advancement mechanism
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
- A61M2005/3107—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle for needles
- A61M2005/3109—Caps sealing the needle bore by use of, e.g. air-hardening adhesive, elastomer or epoxy resin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
- A61M2005/325—Means obstructing the needle passage at distal end of a needle protection sleeve
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0693—Flashback chambers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
Abstract
The utility model provides a remaining needle assembly body, which is difficult to slip and is capable of easily performing a puncture operation. The remaining needle assembly body (1) is provided with a hollow outer needle (2), an outer needle joint (3), an inner needle (4), an inner needle joint (5) and a pipe (7), wherein the outer needle joint (3) is fixed at the base end of the outer needle (2); the front end of the inner needle (4) has a sharp needle tip; the inner needle (4) is inserted into the outer needle (2); the inner needle joint (5) is bonded and fixed at the base end of the inner needle (4) through a bonder; the pipe (7) is used for enabling an inner chamber (71) and an inner chamber (21) of the outer needle (2) to be communicated and is connected with the lateral part of the outer needle joint (3); the inner needle joint (5) is provided with a convex part (61); the convex part (61) is formed in a way that the bonder is protruded towards the base end direction matched with a base end face (53) of an inner needle joint main body part (50); and a finger butting part (54) for the thumb of a hand of holding the remaining needle assembly (1) to butt is formed by the base end face (53) and the convex part (61).
Description
Technical field
This utility model for example relates to when transfusion and is punctured in the blood vessel and the remaining needle assembly of keeping somewhere.
Background technology
When the patient is infused etc., the retained needle puncture that will be connected with transfer line is also kept somewhere to infuse in patient's blood vessel.
Such remaining needle assembly by the outer pin of hollow, be fixed on the outer needle interface of the cardinal extremity of outer pin; Be inserted in the outer pin and have the interior pin of sharp keen needle point at front end; The interior needle interface of the cardinal extremity of pin in being fixed on; And the protector that freely connects with respect to outer needle interface mounting or dismounting constitutes.Be formed with the person in charge outside on the needle interface and have, on side pipe, connect transfer line (for example patent documentation 1) from the side pipe of the ramose branch of this stream stream with the stream that is communicated with the inner chamber of outer pin.
Will be with this retained needle puncture in patient's blood vessel the time, the needle point of pin carries out puncture procedure under the outstanding assembled state of the front end of outer pin in the pin and in making outside interior pin is inserted into.
When the needle point of interior pin arrives in the blood vessel, blood flows into from the leading section of interior pin, this blood is outside pin of hole portion on the sidepiece of pin and the inflow of the stream between the interior pin in be formed on the way, and the stream that flows into the inside of transparent outer needle interface, promptly is responsible for by this stream, and further from being responsible for the branch's stream (blood back) that flows into side pipe.Thus, can confirm that (visuognosis) interior pin is inserted in the blood vessel really.
After confirming this blood back, serve as that guiding advances outer pin with interior pin, should be punctured in the blood vessel by outer pin.
Then, grip and fixing outer pin or outer needle interface, simultaneously, grip interior needle interface and it is moved to proximal direction, interior pin is extracted from outer pin with the another hands with a hands.Then, throw in infusion solution via side pipe, the person in charge and the outer pin of the transfer line that connects, outer needle interface.
But when the outer pin with above-mentioned remaining needle assembly was retained in patient's body, doctor's (user) put on one's gloves, and carried out puncture procedure with this remaining needle assembly of finger grip.And when this puncture procedure, the doctor uses method for example shown in Figure 3 to grip the remaining needle assembly sometimes.
This gripping method is called as " wing mouth (wing port) gripping " in this manual, thumb is connected to the cardinal extremity of interior needle interface, for example middle finger in other fingers is connected to the front of remaining needle assembly, the i.e. alar part of outer needle interface (wing), clamps the remaining needle assembly from length direction thus and grip.
Yet in remaining needle assembly in the past, when carrying out puncture procedure, gloved hands refer to slide easily with respect to the remaining needle assembly, and particularly, thumb slides from the cardinal extremity of interior needle interface easily, therefore exists puncture procedure to be difficult to the problem of carrying out.
Patent documentation 1: No. 6749588 description of United States Patent (USP)
The utility model content
The purpose of this utility model provides the remaining needle assembly that a kind of difficult slip and puncture procedure can easily carry out.
Above-mentioned purpose can realize by this utility model of following (1)～(7).
(1) a kind of remaining needle assembly has:
The interior pin that has sharp keen needle point at front end;
Be fixed on described in pin base end part and have the interior needle interface of cardinal extremity face;
The outer pin that runs through the hollow of insertion for pin in described; And
Be fixed on the outer needle interface of the base end part of described outer pin, it is characterized in that,
In described the base end part of pin pin in described by binding agent be bonded and fixed at described on the needle interface,
Be provided with protuberance in described on the needle interface, described protuberance is to make described binding agent give prominence to and form to the proximal direction of comparing with described cardinal extremity face.
(2) as above-mentioned (1) described remaining needle assembly, it is characterized in that, described in needle interface have interior needle interface main part, described interior needle interface main part is provided with to the base end side opening and the recess of being filled by described binding agent,
Described protuberance is at the central part protuberance of the opening of described recess.
(3) as above-mentioned (1) described remaining needle assembly, it is characterized in that, described in needle interface have interior needle interface main part, described interior needle interface main part is provided with to the base end side opening and the recess of being filled by described binding agent,
Described protuberance is from the whole opening protuberance of described recess.
As each described remaining needle assembly in above-mentioned (1)～(3), it is characterized in that (4) the described cardinal extremity face of described interior needle interface and described protuberance constitute the finger abutting part for the thumb butt of the hands that grips this remaining needle assembly.
(5) as above-mentioned (1) described remaining needle assembly, it is characterized in that, described in needle interface have interior needle interface main part, described interior needle interface main part is provided with to the base end side opening and the recess of being filled by described binding agent,
In described, be provided with opening that surrounds described recess and the ring bodies of giving prominence to proximal direction on the cardinal extremity face of needle interface main part,
The proximal direction that described protuberance is compared with the cardinal extremity face of this ring bodies from the interior side direction of described ring bodies is outstanding.
As each described remaining needle assembly in above-mentioned (1)～(5), it is characterized in that (6) this remaining needle assembly is referred to grip by gloved hands and is used.
As above-mentioned (6) described remaining needle assembly, it is characterized in that (7) described binding agent is not easy to slide with respect to described glove after sclerosis.
The using method of remaining needle assembly of the present utility model is characterized in that,
Have: the operation of preparing the remaining needle assembly, described remaining needle assembly have front end have sharp keen needle point interior pin, be fixed on described in pin base end part and have the interior needle interface of cardinal extremity face, run through for pin in described insertion hollow outer pin and be fixed on described outside the outer needle interface of base end part of pin, in described the base end part of pin pin in described by binding agent be bonded and fixed at described on the needle interface, be provided with protuberance in described on the needle interface, described protuberance is to make described binding agent give prominence to and form to the proximal direction of comparing with described cardinal extremity face;
Described interior pin is run through to be inserted in the described outer pin, with thumb be connected to described on the described protuberance of described remaining needle assembly under the assembled state given prominence to of the front end of needle point pin from described outside of pin, and in remaining finger any be connected to the front of described remaining needle assembly, thus described remaining needle assembly is clamped and the operation that grips from length direction; And
Pin in described and described outer pin are punctured to biological intravital operation.
In the using method of remaining needle assembly of the present utility model, preferably has glove operation.
The effect of utility model
According to this utility model, by the protuberance that is formed by binding agent, the thumb that for example can prevent to grip the hands of this remaining needle assembly slides from the cardinal extremity face of interior needle interface, thus, and can be easily and carry out puncture procedure safely.Particularly, referring to gloved hands to grip under the situation that this remaining needle assembly uses, its effect is remarkable.
In addition, as the binding agent that forms protuberance, since the part of the binding agent that has used when having used the base end part with interior pin is bonded and fixed on the needle interface, simple in structure, and can under the situation that does not increase manufacturing process, make this remaining needle assembly.
Description of drawings
Fig. 1 is the axonometric chart of first embodiment of expression remaining needle assembly of the present utility model.
Fig. 2 is the side view of expression remaining needle assembly shown in Figure 1.
Fig. 3 is the side view of the gripping state of expression remaining needle assembly shown in Figure 1.
Fig. 4 is the exploded perspective view of remaining needle assembly shown in Figure 1.
Fig. 5 is the cutaway view of outer needle interface, interior pin, interior needle interface and the protector etc. of expression remaining needle assembly shown in Figure 1.
Fig. 6 is the A-A line cutaway view among Fig. 5.
Fig. 7 is the cutaway view of outer needle interface, interior pin, interior needle interface and the protector etc. of expression remaining needle assembly shown in Figure 1.
Fig. 8 is the axonometric chart of binding parts of the protector of expression remaining needle assembly shown in Figure 1.
Fig. 9 is the upward view that schematically shows the binding parts of the outer needle interface of remaining needle assembly shown in Figure 1 and protector.
Figure 10 is the upward view that schematically shows the binding parts of the outer needle interface of remaining needle assembly shown in Figure 1 and protector.
Figure 11 is the cutaway view of other configuration examples of the protuberance of expression remaining needle assembly shown in Figure 1.
Figure 12 is the figure of second embodiment of expression remaining needle assembly of the present utility model.
Description of reference numerals
1 remaining needle assembly
2 outer pins
21 inner chambers
22 front openings
3 outer needle interfaces
31 streams
32 branch's streams
33 ribs
331 sliding surfaces
36 are responsible for
37 side pipes
Pin in 4
41 needle points
Needle interface in 5
Needle interface main part in 50
51 protector insertion sections
52 recesses
53 cardinal extremity faces
54 finger abutting parts
55 ring bodies
551, cardinal extremity face
6 binding agents
61 protuberances
7 pipes
71 inner chambers
72,73 adapters
9 protectors
91 protector main bodys
911 hole portions
912,913 wall portions
916 finger abutting parts
92 link parts
921 first positions
922 second positions
923 the 3rd positions
924 protrusion tabs
925 baffle portion
926 opposite faces
12a, 12b alar part
20 link parts
L length
O
1Central shaft
The specific embodiment
Below, the preferred implementation shown in is elaborated to remaining needle assembly of the present utility model with reference to the accompanying drawings.
(first embodiment)
Fig. 1 is the axonometric chart of first embodiment of expression remaining needle assembly of the present utility model; Fig. 2 is the side view of expression remaining needle assembly shown in Figure 1; Fig. 3 is the side view of the gripping state of expression remaining needle assembly shown in Figure 1; Fig. 4 is the exploded perspective view of remaining needle assembly shown in Figure 1; Fig. 5 is the outer needle interface of expression remaining needle assembly shown in Figure 1; interior pin; the cutaway view of interior needle interface and protector etc.; Fig. 6 is the A-A line cutaway view among Fig. 5; Fig. 7 is the outer needle interface of expression remaining needle assembly shown in Figure 1; interior pin; the cutaway view of interior needle interface and protector etc.; Fig. 8 is the axonometric chart of binding parts of the protector of expression remaining needle assembly shown in Figure 1, and Fig. 9 and Figure 10 are respectively the upward views that schematically shows the binding parts of the outer needle interface of remaining needle assembly shown in Figure 1 and protector.
In addition, in the following description, with the right side among Fig. 2, Fig. 3, Fig. 9 and Figure 10 as " cardinal extremity (rear end) ", with the left side as " front end ", in addition with the left side among Fig. 4, Fig. 5 and Fig. 7 as " cardinal extremity (rear end) ", the right side is described as " front end ".In addition, in Fig. 9 and Figure 10, for the binding parts of protector, first position and protrusion tab have only drawn.
Remaining needle assembly 1 shown in each figure has: the outer pin 2 of hollow; Be fixed on the outer needle interface 3 of the base end part of outer pin 2; Be interspersed in the interior pin 4 of outer pin 2 inside; The base end part of pin 4 in being fixed on, and have interior needle interface 5 for the finger abutting part 54 of the thumb butt of the hands that grips remaining needle assembly 1 at base end part; And be connected the side portion of outer needle interface 3 so that the pipe 7 that inner chamber 71 is communicated with the inner chamber 21 of outer pin 2.In addition, this remaining needle assembly 1 is especially to grip use with the finger that has on medical gloves (being designated hereinafter simply as " glove "), but also can use with finger grip under gloveless situation.
The outer pin 2 preferred flexible materials that have to a certain degree that use.The constituent material preferred resin material of outer pin 2, preferred especially soft resin material, as its object lesson, for example can list mixture of olefine kind resins such as fluorine-type resins such as PTFE, ETFE, PFA, polyethylene, polypropylene or their mixture, polyurethane, polyester, polyamide, polyethers nylon resin, described olefine kind resin and ethylene-vinyl acetate copolymer etc.
The base end part of pin 2 outside, by for example riveted joint, welding (thermal welding, high frequency welding), utilize the method such as bonding of binding agent, liquid thickly is fixed with outer needle interface 3.
As previously mentioned, the base end part of outer pin 2 is fixed on is responsible for 36 front, stream 31 its front with outside the inner chamber 21 of pin 2 be communicated with.Stream 31 disposes in the roughly consistent mode of its axis and the central shaft of outer pin 2.
On the other hand, branch's stream 32 (side pipe 37) with its axis with respect to the central shaft of outer pin 2, be that the axis of stream 31 disposes in the mode that predetermined angular tilts.In this case, branch's stream 32 tilts in the mode that the base end side of branch's stream 32 is arranged in the right side of Fig. 1～3.In addition, the axis of branch's stream 32 also can be with respect to the axis normal of stream 31.
In addition, the leading section of pipe 7 is connected with the side pipe 37 of outer needle interface 3.Thus, can liquid such as medicinal liquid be supplied in the outer pin 2 via pipe 7.
In addition, be formed with rib 33 on the base end part of needle interface 3 outside.About this rib 33, will describe in detail in the back.
In addition, the side of needle interface 3 has formed a pair of alar part 12a, 12b with outer needle interface 3 outside.With outer pin 2 and in pin 4 be punctured to blood vessel etc. when middle, gripping remaining needle assembly 1 punctures, after the front end intravasation of pin 2, push finger abutting part 916 described later with forefinger outer needle interface 3 is advanced outside, outer pin 2 is entered in the blood vessel.Outside keeping somewhere, in the pin 2, alar part 12a, 12b are fixed on the skin by pasting band etc.
Run through in the pin 2 outside and be inserted with the interior pin 4 that has sharp keen needle point 41 at front end.Remaining needle assembly 1 outside interior pin 4 is interspersed in the pin 2 and needle point 41 under the outstanding state of the front opening (front end) 22 of outer pin 2, be the use of getting off of Fig. 1～Fig. 3, Fig. 5, Fig. 6 and state shown in Figure 9.Below, this state is called " assembled state ".
The length of interior pin 4 is, under assembled state, needle point 41 is from the length of the outstanding degree of the front opening 22 of outer pin 2 at least.
In illustrated formation, interior pin 4 is a hollow needle, and Tu sidepiece is formed with not shown hole portion (side opening) therein.Thus, when interior pin 4 piercing blood vessels, the hollow bulb of pin 4 in blood flow into, in this blood flow into from the hole portion that the sidepiece at interior pin 4 forms halfway pin 4 and outside gap between the pin 2, can earlier confirm the blood back of blood thus.
In addition, interior pin 4 also can be have hollow bulb and solid part both sides structure (for example, to make front be hollow by the part of the inner chamber of hollow needle is filled, make base end side is solid structure etc.), because its integral body is made of parts, so the reduction of the cost of pin 4 in can realizing.
In addition, the external diameter of interior pin 4 can be constant, and in addition, interior pin 4 also can have the different a plurality of parts of external diameter.
As the constituent material of so interior pin 4, for example can list the such metal material of rustless steel, aluminum or aluminum alloy, titanium or titanium alloy.
As shown in Figure 5, needle interface 5 in the base end part of interior pin 4 has by binding agent 6 bondings (fixing).That is, interior needle interface 5 has interior needle interface main part 50, and the base end part of interior pin 4 is bonded and fixed in this on needle interface main part 50 by binding agent 6.
Specifically, interior needle interface main part 50 has the recess 52 at the cardinal extremity opening.And the base end part of interior pin 4 is configured in the recess 52, filling adhesive 6 in this recess 52, and thus, interior pin 4 is in its base end part is bonded and fixed at by binding agent 6 on the needle interface main part 50.In addition, in illustrated formation,, therefore can seal the blood that refluxes when making in being punctured to blood vessel and can not fly out from the base end part of interior needle interface 5 by this binding agent 6 because interior pin 4 is hollow.
In addition, interior needle interface main part 50 has protector insertion section (linking the parts incorporating section) 51 at its leading section, and this protector insertion section 51 base end part for protector 9 described later under assembled state inserts, and takes in binding parts 20 described later.Protector 9 and binding parts 20 can move with respect to protector insertion section 51 respectively.
In addition, about finger abutting part 54, will describe in detail in the back.
Constituent material as outer needle interface 3, interior needle interface 5 and alar part 12a, 12b is not particularly limited.In addition, as the constituent material of outer needle interface 3 and alar part 12a, 12b, can list for example various resin materials such as polyolefin such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyurethane, polyamide, polyester, Merlon, polybutadiene, polrvinyl chloride, polyformaldehyde respectively.About the constituent material of interior needle interface 5, will describe in detail in the back.
Pipe 7 has flexible, and as previously mentioned, its leading section is connected with the side pipe 37 of outer needle interface 3.Base end part at pipe 7 is provided with the branching portion that stream is divided into two, on the side adapter 72 is installed therein, and adapter 73 is installed on the opposing party.On each adapter 72,73, for example be connected with adapter on the end that is installed in the transfer line that the transfusion (medicinal liquid) of throwing in is supplied with respectively, take in the oral area etc. of the syringe of medicinal liquid.
In addition, the constituent material as pipe 7 is not particularly limited, and can list for example polyolefin such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polrvinyl chloride, polybutadiene, polyamide, polyurethane, polyester etc.
In addition, remaining needle assembly 1 has as seal member closing means, cylindric (bulk) (not shown) with these stream 31 sealings on the stream 31 of needle interface 3 outside.The sealing parts are arranged on the base end side of comparing with branch stream 32 of being responsible for 36 stream 31.And, in the present embodiment, seal member be configured in branch's stream 32 near.
Be formed with on the sealing parts and can running through insertion and blind bore or slit when the interior pin 4 that will run through insertion takes out for interior pin 4.In the present embodiment, the substantial middle at seal member is formed with the slit (not shown) that connects along the length direction of sealing parts.
The shape of slit is in-line.Thus, can easily make the slit of closed condition become open mode.Thus, interior pin 4 can successfully run through and inserts seal member (slit), that is, as aftermentioned serve as outside the guiding propelling during pin 2 with interior pin 4, can reduce the frictional resistance between the inner surface of the outer surface of interior pin 4 and slit.Therefore, the operability in the time of can further improving the puncture procedure of remaining needle assembly 1.
Seal member has self-enclosed property, that is, under assembled state, interior pin 4 can run through in the insertion slit, and when the interior pin 4 that will run through insertion took out, slit sealed by the elastic force (restoring force) of seal member self.Thus, in taking out, during pin 4, cardinal extremity leakage body can be prevented, and the aseptic in the outer needle interface 3 can be kept from outer needle interface 3.
As the constituent material of such seal member, can list various thermoplasticity synthetic rubber or their various elastomeric materials such as mixture such as so various elastomeric materials (especially having passed through the elastomeric material of vulcanizing treatment) of natural rubber for example, isoprene rubber, buttress rubber, butadiene rubber, butadiene-styrene rubber, polyurethane rubber, acrylonitrile-butadiene rubber, acrylate rubber, fluorubber, silicone rubber or urethane esters, polyesters, polyamide-based, olefines, vinyl.
In addition, the friction of the frictional resistance between the outer surface of the inner surface of preferably remaining needle assembly 1 being implemented to reduce slit and interior pin 4 reduces processing.
Reduce to handle as this friction, for example can list and pay the processing that forms the layer (low friction layer) that constitutes by low-friction material on the processing of lubricant, the inner surface etc. on the surface of at least one side in the outer surface (outer peripheral face) of the inner surface of slit and interior pin 4 at slit.
Reduce by such friction and to handle,, can positively reduce the frictional resistance between interior pin 4 and the seal member serve as outside guiding advances during pin 2 with interior pin 4.Thus, outer pin 2 is moved swimmingly, the operability of remaining needle assembly 1 when puncture procedure is good.
In addition, remaining needle assembly 1 have when interior pin 4 is taken out from outer pin 2 cover in the protector 9 of needle point at least 41 of pin 4.Below this protector 9 is described.
In protector 9 is inserted under assembled state in the protector insertion section 51 of needle interface 5.
This protector 9 freely connects with respect to 3 mounting or dismounting of outer needle interface, and as Fig. 4, Fig. 5 and shown in Figure 7, protector 9 has protector main body 91 and is arranged on binding parts 92 in the protector main body 91.
Be formed with the hole portion 911 that the end is arranged of the base end part insertion that under assembled state, supplies outer needle interface 3 at the leading section of protector main body 91.
The constituent material of protector main body 91 is not particularly limited, and for example can use the material identical materials that lists with reaching the constituent material of interior needle interface 5 as outer needle interface 3.
In addition, link the base end side that parts 92 are incorporated in the hole portion 911 of protector main body 91.That is, on protector main body 91, be formed with the wall portion 912 of the diapire that constitutes hole portion 911 and, link parts 92 and be arranged between these wall portions 912 and the wall portion 913 in the wall portion 913 of the base end side configuration of wall portion 912.
As Fig. 5, Fig. 7 and shown in Figure 8, link parts 92 and have elasticity, and have the tabular protrusion tab 924 that can engage with the rib 33 of outer needle interface 3.Under assembled state, the base end part of needle interface 3 is inserted under the state in the hole portion 911 of protector 9 outside, and protector 9 engages with the rib 33 of outer needle interface 3 by the protrusion tab 924 that links parts 92 and installs and removes binding freely with respect to outer needle interface 3.
In the present embodiment, the global shape that links parts 92 is roughly V word shape, is by the zonal plate member of rubber-like being bent to the parts (leaf spring) that V word shape roughly forms.Specifically, link parts 92 and have first position 921, be connected among the Fig. 8 at first position 921 upside and with first position 921 form V font roughly second position 922, be configured in the downside among the Fig. 8 at first position 921 the 3rd position 923, from the cardinal extremity at the 3rd position 923 to Fig. 8 last side-prominent protrusion tab 924 and be configured in the way at first position 921 and the baffle portion 925 of base end side.In addition, make progress lateral bending song or warpage of the position of the downside among the Fig. 8 at second position 922.In addition, the opposite face 926 that sliding surface protrusion tab 924 and rib 33 described later 331 is relative is with respect to the central shaft O of interior pin 4
1Approximate vertical.
These binding parts 92 by the open angle between first position 921 and second position 922 variation and can obtain first state that protrusion tab 924 engages with rib 33 and second state that protrusion tab 924 and engaging of rib 33 are disengaged.
That is,, under assembled state, link parts 92 and under the state that the mode that diminishes with open angle has folded, be contained as Fig. 5, Fig. 6 and shown in Figure 9, and first state that is maintained at that connects of the outer peripheral face by first position 921 and interior pin 4.Under this state, protector 9 is bonded with respect to outer needle interface 3.In addition, protector 9 and outer needle interface 3 can relatively move on the length direction of interior pin 4 with respect to interior pin 4 and interior needle interface 5.
If needle interface 5 moves to proximal direction with respect to protector 9 in making from this state; and the needle point 41 that makes interior pin 4 arrives the base end side at first position 921 that links parts 92; then as Fig. 7, shown in Figure 10; linking parts 92 opens under the effect of the elastic force of self; and via binding parts described later 20 by to the proximal direction traction and moved, become second state.Under the effect of the restoring force that links parts 92, the direction that protrusion tab 924 moves is the central shaft O with respect to interior pin 4
1The direction of approximate vertical.Under this state, protector 9 is disengaged with the binding of outer needle interface 3, and in addition, the baffle portion 925 that links parts 92 is positioned at the central shaft O of pin 4
1On the front of needle point 41, thus, can stop needle point 41 to surpass to link parts 92 and the forward end direction moves.In addition, if needle interface 5 further moves to proximal direction in making, then protector 9 is moved to the proximal direction traction via binding parts 20 described later, breaks away from from outer needle interface 3.
Be not particularly limited as the constituent material that links parts 92, for example can list various resin materials or the various metal materials such as rustless steel, aluminum or aluminum alloy, titanium or titanium alloy, copper or copper alloy identical with above-mentioned outer needle interface 3, interior needle interface 5.
In addition, a part that links parts 92 for example can be by riveting, imbed, welding, utilizing the methods such as bonding of binding agent to be fixed on the protector main body 91.In addition, linking parts 92 and be not limited to illustrated formation, also can be other shape, structure.
In addition, at the outstanding finger abutting part 916 that is formed with of the leading section of protector main body 91.Protector main body 91 is integrally formed with finger abutting part 916.In addition, finger abutting part 916 is outstanding upward.By pointing the pushing of abutting part 916 forward end directions, outer pin 2 is moved with respect to interior pin 4 forward end directions with finger.
In addition, also protector main body 91 can be formed with the different parts of finger abutting part 916 usefulness, and they are engaged.In this case, be not particularly limited, for example can use the material identical materials that lists with the constituent material of the outer needle interface 3 of conduct as the constituent material of pointing abutting part 916.In addition, finger abutting part 916 also can be at other positions, for example outstanding formation on the outer needle interface 3.
In addition; as Fig. 4, Fig. 5 and shown in Figure 7; remaining needle assembly 1 has and links parts 20, and these bindings parts 20 prevent function that this protector 9 is prevented locking mechanism from coming off of coming off of needle point 41 and the function of connect mechanism that protector 9 and interior needle interface 5 are linked up when having the needle point 41 of pin 4 in protector 9 covers.
The protector main body 91 that these binding parts 20 constitute protector 9 links up with interior needle interface 5.Thus, needle interface 5 is when proximal direction moves in making, and protector 9 can be drawn to proximal direction via linking parts 20.
In addition, link parts 20 and form Serpentis abdomen shape, therefore capable of expansion and contraction.And, link parts 20 have in maximum elongation state (complete tensile state) down in the needle point 41 of pin 4 compare with the baffle portion 925 of binding parts 92 and be positioned at the length that base end side and needle point 41 are incorporated in the degree of protector main body 91 (can not come off from protector main body 91).
Like this; linking parts 20 links up protector main body 91 and interior needle interface 5; and has the length of the degree in the protector main body 91 that under the state of maximum elongation, needle point 41 is accommodated in; therefore can prevent positively that protector 9 from coming off from the needle point 41 of interior pin 4; thus, can positively keep the state that protector 9 covers needle point 41.Therefore, in carrying out, during waste treatment of pin 4 grades etc., can prevent positively that its operator etc. from being punctured the accident of finger etc. because of carelessness by needle point 41, thus safe.
In addition, link parts 20 under assembled state, shrinks, promptly folding, link parts 20 interior pin 4 is taken out from outer pin 2, elongation under the state that protector 9 covers needle points 41, i.e. expansion.
Such binding parts 20 shrink under assembled state, under the state of this contraction, link the base end side of comparing with protector that parts 20 are incorporated in the protector insertion section 51 of interior needle interface 5.Thus, when puncture procedure, link parts 20 and do not constitute obstruction, can improve the operability of remaining needle assembly 1.In addition, the advantage that also has the miniaturization that to realize remaining needle assembly 1.
In addition, under the state of state that links parts 20 contractions and elongation, interior pin 4 runs through this binding parts 20.Thus, interior pin 4 plays a role as the guiding piece that links parts 20 this link 20 when flexible.Thus, for example, when making remaining needle assembly 1 become assembled state (during manufacturing), can positively prevent to link parts 20 and shrink in the needle interface 5 under undesirable state, shrinking, promptly not being incorporated in.
In addition, link parts 20 have to get back to its naturalness from recovery, under the state that shrinks than naturalness, by its restoring force, link parts 20 as playing a role to the force application mechanism of the direction application of force of elongation, in addition, under state than the naturalness elongation, by its restoring force, link parts 20 as playing a role to the force application mechanism of the direction application of force of shrinking." naturalness " is meant not to linking the state that parts 20 apply external force.
In addition, binding parts 20 also can constitute protector 9 and interior pin 4 are linked up.
As Fig. 4, Fig. 5, Fig. 7, Fig. 9 and shown in Figure 10, the outer needle interface 3 of this remaining needle assembly 1 has rib 33 as the protuberance that can engage with the protrusion tab 924 of the binding parts 92 of described protector 9 at its base end part.
This rib 33 has central shaft (axle) O with respect to interior pin 4
1The sliding surface 331 that slides for protrusion tab 924 that tilts, link parts 92 from Fig. 5, Fig. 6 and first state shown in Figure 9 when Fig. 7 and second state shown in Figure 10 move, the protrusion tab 924 that links parts 92 constitutes along this sliding surface 331 and slides.That is, when interior pin 4 was taken out from outer pin 2, first position 921 that links parts 92 was left and is replied from the outer peripheral face of interior pin 4, and when linking parts 92 and reply, protrusion tab 924 slides and becomes second state along the sliding surface 331 of rib 33.
Thus, interior pin 4 being taken out and makes protector 9 when outer needle interface 3 breaks away from, can reduce resistance from outer pin 2.Thus, can carry out smooth and easy and reliably pin 4 in described is taken out and make the operation of protector 9 from outer needle interface 3 disengagings from outer pin 2.
In addition, owing to sliding surface 331 tilts, so protrusion tab 924 is little with the area of the contact portion of the sliding surface 331 of rib 33, and thus, protrusion tab 924 is little with the resistance to sliding of the sliding surface 331 of rib 33.Thus, protrusion tab 924 can be more swimmingly slides along the sliding surface 331 of rib 33.
The central shaft O with respect to interior pin 4 of the sliding surface 331 of rib 33
1The angle of inclination (with central shaft O
1The angle that is become) the θ less than is 90 °, preferred about 30～85 °, is more preferably about 45～80 °.
Thus, protector 9 is broken away from more swimmingly from outer needle interface 3.
Here; needle interface in assembled state makes 5 with respect to protector 9 when proximal direction moves and interior pin 4 is extracted from outer pin 2; required power is F1 when linking parts 92 at first state; when from the needle point 41 of interior pin 4 to the moment that the base end side that links parts 92 moves begin up to the protrusion tab 924 that links parts 92 and rib 33 engage releasing, promptly link parts 92 from first state during to second state transitions required power be F2, then preferably set tilt angle theta in the mode that satisfies following condition.
That is, F2 preferably below 2 * F1, is more preferably at below 1.5 * F1, further preferably below F1.
And, especially preferably set tilt angle theta with F2 and F1 mode about equally.
Thus, protector 9 is broken away from from outer needle interface 3.
In addition, the major part among the F1 is and the outer peripheral face of interior pin 4 and link the power of the frictional resistance antagonism between first position 921 of parts 92.In addition, the major part among the F2 is and links the power of the frictional resistance antagonism between the sliding surface 331 of the protrusion tab 924 of parts 92 and rib 33.
In addition, the height of rib 33 is constant in the present embodiment, but the height of rib 33 also can be towards protrusion tab 924 along rib 33 sliding surface 331 moving direction when sliding reduce gradually.Under the situation that the height of rib 33 reduces gradually, can more smooth and easy and positively make to link parts 92 and become second state.
In addition, be coated with for example lubricant such as silicone oil, surfactant on any one party in the opposite face 926 of the protrusion tab 924 of the sliding surface 331 of the preferred rib 33 of needle interface 3 outside and binding parts 92 or the both sides.Thus, can reduce the resistance to sliding between the sliding surface 331 of protrusion tab 924 and rib 33, the protrusion tab 924 that links parts 92 is slided along the sliding surface 331 of rib 33 more swimmingly.
In addition, preferred also application of lubricating at the contacted position of the outer peripheral face with interior pin 4 at first position 921 that links parts 92.Thus, the outer peripheral face of pin 4 and the frictional resistance between first position 921 in can reducing, pin 4 moving in can carrying out more swimmingly with respect to protector 9.
And, as Fig. 2 and shown in Figure 5, in this remaining needle assembly 1, on interior needle interface 5, being provided with protuberance 61, this protuberance 61 forms by binding agent 6 is compared with the cardinal extremity face 53 of interior needle interface main part 50 to proximal direction is outstanding.This cardinal extremity face 53 and protuberance 61 constitute the finger abutting part 54 for the thumb butt of the hands that grips remaining needle assembly 1.
Here, when doctor's (user) is retained in patient's body at the outer pin 2 with remaining needle assembly 1, put on one's gloves, with the remaining needle assembly 1 of finger grip assembled state, carry out with outer pin 2 and in pin 4 be punctured to puncture procedure in the blood vessel etc.And when carrying out this puncture procedure, the doctor for example uses method shown in Figure 3 to grip remaining needle assembly 1 sometimes.
This gripping method is called " gripping of wing mouth " in this manual, thumb is connected on the finger abutting part 54 (protuberance 61, cardinal extremity face 53), with any one finger (in illustrated formation for middle finger) in remaining finger be connected to the front of remaining needle assembly 1, promptly outside on the alar part 12a of needle interface 3, clamp remaining needle assembly 1 and grip from length direction thus.In addition, even do not have in use under the situation of remaining needle assembly of alar part 12a, 12b, also can for example make middle finger carry out described wing mouth gripping with the front butt of these remaining needle assemblies such as the front end of outer needle interface or the conical surface of leading section.
By described protuberance 61 is set, can prevent that thumb from sliding from finger abutting part 54 (cardinal extremity of interior needle interface 5) such passing through under the situation that wing mouth grips remaining needle assembly 1, thus, can be easily and carry out puncture procedure safely.Particularly when referring to grip this remaining needle assembly 1 with gloved hands and use, effect is remarkable.
In addition, protuberance 61 is at the central part protuberance of the opening of recess 52.That is, protuberance 61 projects to the central shaft O with respect to interior pin 4
1Area when the area in the time of on the vertical plane (projected area) projects on the described plane with the opening of recess 52 is identical, and protuberance 61 projects to the central shaft O with respect to interior pin 4
1Area when the area in the time of on the vertical plane (projected area) projects on the described plane than the opening of recess 52 is little.Thus, can prevent more positively that thumb from sliding from the cardinal extremity of interior needle interface 5.
The size of protuberance 61 is not particularly limited, and can adapt to ground according to each condition and set, for example, the height of protuberance 61 (central shaft O
1The length of direction) be preferably about 0.1～5mm, be more preferably about 0.3～2mm.In addition, the described projected area of protuberance 61 is preferably 0.2～20mm
2About, be more preferably 0.7～13mm
2About.
Here, medical gloves is gone back desired strength except requiring softness, being fit to hands.Therefore, as the constituent material of glove, can use for example polrvinyl chloride (PVC), natural rubber breast, nitrile etc.If use polrvinyl chloride, then dress easily, do not worry that hands is coarse, low price.If use the natural rubber breast, then intensity and flexibility are all fine.If use nitrile, then do not have problem hypersensitive.
In addition, internally the requirement of the interior needle interface main part 50 of needle interface 5 is, and is easy with the assembling of interior pin 4 and protector 9 etc., has the transparency of the degree of the blood back that can see blood, in addition, because also use, so harder as the grip part.
Constituent material as interior needle interface main part 50, for example various resin materials such as polyolefin such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyurethane, polyamide, polyester, Merlon, polybutadiene, polrvinyl chloride, polyformaldehyde be can use, Merlon, polypropylene etc. especially preferably used.If use Merlon, then transparent good, hard, can carry out solvent bonding etc., assembling is easily.If use polypropylene, then drug resistance is good, and biocompatible might as well.
In addition, as binding agent 6, as long as be not easy to slide, compare with interior needle interface main part 50 with respect to glove and be not easy to slide with respect to glove in when sclerosis, be not particularly limited, can set aptly according to each condition, still, epoxies binding agent etc. are owing to be to utilize the hardened structure of chemical reaction, therefore shrinkage factor is little, is suitable for the formation of protuberance 61.In addition, acrylic adhesive etc. are because room temperature setting rate down is fast, so are not easy to produce liquid when assembling and hang etc., are suitable for the formation of protuberance 61.In addition, in order to be easy to form protuberance 61, preferably when binding agent hardens, with remaining needle assembly 1 with respect to ground vertically erect towards making its sclerosis.
In addition, length (distance) L between the front end of the outer needle interface 3 of the remaining needle assembly 1 of assembled state and the cardinal extremity of protuberance 61 is preferably about 20～80mm, is more preferably about 30～60mm.Thus, can easily carry out wing mouth grips.
Below, an example of the using method of remaining needle assembly 1 is elaborated.
As prerequisite, the doctor puts on medical gloves.This operation is as long as before carrying out puncture procedure described later.
(1) prepare remaining needle assembly 1, and become assembled state (with reference to Fig. 1, Fig. 2, Fig. 5, Fig. 6, Fig. 9), the adapter on the end that is connected and installed in transfer line on the adapter 72 in advance is so that can supply with transfusion from transfer line.
In addition, at this moment, the regulation position on pipe 7 or the transfer line is for example clamped by clip (example of passage opening/closing mechanism), make its inner chamber sealing.
(2) then, remove the pipe 7 utilize described clip etc. or the sealing of transfer line, will import in the outer needle interface 3 via pipe 7 from the transfusion of transfer line.
Import to transfusions in the outer needle interface 3 and will compare the stream 31 that is positioned at front with seal member with branch's stream 32 and be full of, and import to the inner chamber 21 of outer pin 2, thus, the inner chamber 21 of outer pin 2 is poured into by transfusion.At this moment, the part of transfusion flows out from the front opening 22 of outer pin 2.
(3) after as above, having finished perfusion, once more by clip etc. will manage 7 or transfer line seal, grip remaining needle assembly 1 by aforesaid wing mouth.
After pin 2 has been inserted in the blood vessel outside guaranteeing, blood refluxes to proximal direction in the inner chamber 21 of pin 2 outside via interior pin 4 under the intrinsic pressure effect of blood vessel, therefore, can confirm to reflux at least one position that has the outer pin 2 of visuognosis, outer needle interface 3, interior needle interface 5 or manage in 7.
And, after having confirmed backflow, serve as guiding pin 2 outside interior pin 4 advances with slight distance forward end direction further with interior pin 4.
In addition, like this to vascular puncture the time, because the inner chamber 21 of outer pin 2 by the transfusion perfusion, therefore can positively prevent to have because of carelessness bubble to invade in the blood vessel, safety is high.
(5) after pin 2 has been inserted in the blood vessel outside guaranteeing, with a hands that outer pin 2 or outer needle interface 3 is fixing, draw with needle interface 5 in the gripping of another hands and to proximal direction.Carry out continuously from interior pin 4 thus, successively, by the action that from outer pin 2, takes out all each operations to protector 9 from outer needle interface 3 disengagings.That is, at first, interior pin 4 moves to proximal direction, takes out from outer pin 2.
(6) further, interior pin 4 moves to proximal direction, when needle point 41 by after in the slit, the seal member with self-enclosed property makes the slit sealing under the resilient force of self.Thus, can be via the situation of slit generation leakage body, but also can guarantee in the outer needle interface 3 and the aseptic of transfer line.
(7) further, interior pin 4 moves to proximal direction, when needle point 41 arrives the base end side at first position 921 that links parts 92, as Fig. 7 and shown in Figure 10, linking parts 92 further opens under the resilient force of self, and moved to the proximal direction traction by linking parts 20, become second state.
In this case, as previously mentioned, under the restoring force effect that links parts 92, the direction that protrusion tab 924 moves is the central shaft O with respect to interior pin 4
1The direction of approximate vertical, but owing to protector 9 is moved to the proximal direction traction by linking parts 20, therefore; linking parts 92 also moves to proximal direction with protector 9; thus, protrusion tab 924 slides along the sliding surface 331 of rib 33, and linking parts 92 becomes second state.Like this, become second state if link parts 92, though the needle point 41 of then interior pin 4 once more the forward end direction move with returning, also because needle point 41 is connected on the baffle portion 925 that links parts 92 can't return.
(8) further, interior needle interface 5 moves to proximal direction, and thus, protector 9 is moved to the proximal direction traction by linking parts 20, from outer needle interface 3 separation (disengaging).
Owing to link the length that parts 20 have the degree in the protector main body 91 that under the state of maximum elongation needle point 41 is accommodated in, therefore can prevent positively that protector 9 from coming off from needle point 41, thus, can positively keep protector 9 to cover the state of needle point 41.
Like this, after interior pin 4 was taken out from outer pin 2, because needle interface 5 in pin 4 reaches in no longer needing, processing therefore went out of use.
The needle point 41 protected devices 9 of interior pin 4 cover; particularly; needle point 41 can not surpass the baffle portion 925 further forward end side shiftings that link parts 92 and give prominence to from the front end of protector 9, and therefore can prevent the people who carries out waste treatment is punctured such accidents such as finger because of carelessness by needle point 41.
(9) then, by pasting band etc. alar part 12a, 12b are fixed on the skin, and remove and utilize the pipe 7 of described clip or the sealing of transfer line, the supply that begins to infuse.
The transfusion of supplying with from transfer line via adapter 72, pipe 7, outer needle interface 3 and outside each inner chamber of pin 2, be injected in patient's the blood vessel.
As described above, according to this remaining needle assembly 1,, can prevent that (or suppress) grips the hands of remaining needle assembly 1 by wing mouth thumb from sliding from finger abutting part 54 (base end part of interior needle interface 5) by protuberance 61.Thus, can attentively dispose, can be easily and carry out puncture procedure safely.
In addition, because the binding agent 6 that uses when utilizing the base end part with interior pin 4 is bonded and fixed on the needle interface 5 forms protuberance 61, therefore constitute simply, and can under the situation that does not increase manufacturing process, make remaining needle assembly 1.
In addition, the formation of protuberance 61 is not limited to aforementioned formation, and protuberance 61 for example also can be as shown in Figure 11, from the whole opening protuberance (outstanding to proximal direction) of the recess 52 of interior needle interface main part 50.
In addition, also a plurality of protuberances 61 can be set on interior needle interface 5.
(second embodiment)
Figure 12 is the figure of second embodiment of expression remaining needle assembly of the present utility model, and Figure 12 (a) is a side view, and Figure 12 (b) is a cutaway view, and Figure 12 (c) is a rearview.In addition, in the following description, with the left side among 12 (a) and Figure 12 (b) as " front end ", the right side is described as " cardinal extremity (rear end) ".
Below, about second embodiment, describe around difference with aforesaid first embodiment, about same part, omit its explanation.
As shown in figure 12, in the remaining needle assembly 1 of second embodiment, the cardinal extremity face 53 of interior needle interface main body 50 is provided with opening that surrounds recess 52 and the ring bodies of giving prominence to proximal direction 55.And protuberance 61 is compared to proximal direction outstanding from the inboard of ring bodies 55, with the cardinal extremity face 551 of ring bodies 55.In addition, ring bodies 55 is in illustrated formation, at the central shaft O from interior pin 4
1When direction is observed in the form of a ring.The finger abutting part 54 that the cardinal extremity face 551 of the cardinal extremity face 53 of needle interface main part 50, ring bodies 55 and protuberance 61 constitute for the thumb butt of the hands that grips remaining needle assembly 1 in described.
In this remaining needle assembly 1,, can stop binding agent 6 non-original idea ground outflows when forming protuberance 61, and can make binding agent 6 protuberances become the shape and size of regulation and form protuberance 61 by binding agent 6 by ring bodies 55.
In addition, according to this remaining needle assembly 1, also can obtain and the identical effect of aforesaid first embodiment.
Below embodiment with reference to the accompanying drawings is illustrated remaining needle assembly of the present utility model, but this utility model is not limited thereto, and the replaceable one-tenth of the formation of each one has any formation of said function.In addition, can also on basis of the present utility model, add other and constitute thing and operation arbitrarily.
In addition, remaining needle assembly of the present utility model is not limited to be inserted in the blood vessel and uses, and for example also can be applied to be inserted in intraperitoneal, the thoracic cavity, use in the organism in the intralymphatic, spinal canal etc.
In addition, in this utility model, protector is not limited to illustrated formation, gets final product so long as freely link with respect to outer needle interface dismounting.Particularly, so long as the needle point at least of pin in covering when interior pin is taken out from outer pin then can use various formations.
In addition, in this utility model, can omit alar part 12a, 12b.
In addition, in this utility model, can omit side pipe 37 and pipe 7.
Claims (5)
1. remaining needle assembly has:
The interior pin that has sharp keen needle point at front end;
Be fixed on described in pin base end part and have the interior needle interface of cardinal extremity face;
Outer pin for the interspersed hollow of pin in described; And
Be fixed on the outer needle interface of the base end part of described outer pin, it is characterized in that,
In described the base end part of pin pin in described by binding agent be bonded and fixed at described on the needle interface,
Be provided with protuberance in described on the needle interface, described protuberance is to make described binding agent give prominence to and form to the proximal direction of comparing with described cardinal extremity face.
2. remaining needle assembly as claimed in claim 1 is characterized in that, described in needle interface have interior needle interface main part, described interior needle interface main part is provided with to the base end side opening and the recess of being filled by described binding agent,
Described protuberance is at the central part protuberance of the opening of described recess.
3. remaining needle assembly as claimed in claim 1 is characterized in that, described in needle interface have interior needle interface main part, described interior needle interface main part is provided with to the base end side opening and the recess of being filled by described binding agent,
Described protuberance is from the whole opening protuberance of described recess.
4. as each described remaining needle assembly in the claim 1～3, it is characterized in that the described cardinal extremity face of described interior needle interface and described protuberance constitute the finger abutting part for the thumb butt of the hands that grips this remaining needle assembly.
5. remaining needle assembly as claimed in claim 1 is characterized in that, described in needle interface have interior needle interface main part, described interior needle interface main part is provided with to the base end side opening and the recess of being filled by described binding agent,
In described, be provided with opening that surrounds described recess and the ring bodies of giving prominence to proximal direction on the cardinal extremity face of needle interface main part,
The proximal direction that described protuberance is compared with the cardinal extremity face of this ring bodies from the interior side direction of described ring bodies is outstanding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-196829 | 2009-08-27 | ||
| JP2009196829A JP2011045543A (en) | 2009-08-27 | 2009-08-27 | Indwelling needle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201959337U true CN201959337U (en) | 2011-09-07 |
Family
ID=43625918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020507247XU Expired - Fee Related CN201959337U (en) | 2009-08-27 | 2010-08-26 | Remaining needle assembly body |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US8187230B2 (en) |
| JP (1) | JP2011045543A (en) |
| CN (1) | CN201959337U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105517624A (en) * | 2013-09-06 | 2016-04-20 | 波士顿科学神经调制公司 | Lead introducer for an implantable electrical stimulation system |
| CN113041479A (en) * | 2015-05-15 | 2021-06-29 | 泰尔茂株式会社 | Catheter assembly |
| TWI735772B (en) * | 2017-03-30 | 2021-08-11 | 日商托普股份有限公司 | Indwelling needle assembly |
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| JP4994775B2 (en) | 2006-10-12 | 2012-08-08 | 日本コヴィディエン株式会社 | Needle point protector |
| GB0718093D0 (en) * | 2007-09-17 | 2007-10-24 | Park Medical Ltd Q | Sheath assembly |
| EP2517751B8 (en) | 2011-04-27 | 2018-02-28 | Kpr U.S., Llc | Safety IV catheter assemblies |
| EP2760521B1 (en) | 2011-09-26 | 2016-01-06 | Covidien LP | Safety iv catheter and needle assembly |
| WO2013048975A1 (en) | 2011-09-26 | 2013-04-04 | Covidien Lp | Safety catheter |
| US8834422B2 (en) | 2011-10-14 | 2014-09-16 | Covidien Lp | Vascular access assembly and safety device |
| AU2014241936B2 (en) | 2013-03-13 | 2017-04-06 | Boston Scientific Neuromodulation Corporation | System and method for making and using a lead introducer for an implantable electrical stimulation system |
| US10500376B2 (en) | 2013-06-07 | 2019-12-10 | Becton, Dickinson And Company | IV catheter having external needle shield and internal blood control septum |
| GB2508466C (en) * | 2013-08-21 | 2017-11-08 | Braun Melsungen Ag | Catheter Assembly |
| EP3041567A1 (en) | 2013-09-06 | 2016-07-13 | Boston Scientific Neuromodulation Corporation | Lead introducer for an implantable electrical stimulation system |
| US9604050B2 (en) | 2014-02-20 | 2017-03-28 | Boston Scientific Neuromodulation Corporation | Systems and methods for percutaneously implanting into a patient a paddle lead of an electrical stimulation system |
| EP4223333A3 (en) | 2014-04-18 | 2023-09-27 | Becton, Dickinson and Company | Needle capture safety interlock for catheter |
| US11511052B2 (en) | 2014-11-10 | 2022-11-29 | Becton, Dickinson And Company | Safety IV catheter with V-clip interlock and needle tip capture |
| WO2016130575A1 (en) | 2015-02-13 | 2016-08-18 | Boston Scientific Neuromodulation Corporation | Retractor and tools for implantation of electrical stimulation leads |
| WO2016176211A1 (en) | 2015-04-28 | 2016-11-03 | Boston Scientific Neuromodulation Corporation | Systems and methods for making and using a lead introducer with a seal for an electrical stimulation system |
| EP3568185A4 (en) * | 2017-03-06 | 2020-10-28 | Smiths Medical ASD, Inc. | Catheter insertion device with tip protector housing |
| EP3573695A4 (en) | 2017-03-06 | 2020-10-28 | Smiths Medical ASD, Inc. | Iv catheter with vein entry indication |
| WO2020172071A2 (en) | 2019-02-19 | 2020-08-27 | Boston Scientific Neuromodulation Corporation | Lead introducers and systems and methods including the lead introducers |
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|---|---|---|---|---|
| CN105517624A (en) * | 2013-09-06 | 2016-04-20 | 波士顿科学神经调制公司 | Lead introducer for an implantable electrical stimulation system |
| CN105517624B (en) * | 2013-09-06 | 2017-09-12 | 波士顿科学神经调制公司 | Lead lead-through for implantable electric stimulation |
| CN113041479A (en) * | 2015-05-15 | 2021-06-29 | 泰尔茂株式会社 | Catheter assembly |
| TWI735772B (en) * | 2017-03-30 | 2021-08-11 | 日商托普股份有限公司 | Indwelling needle assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011045543A (en) | 2011-03-10 |
| US8187230B2 (en) | 2012-05-29 |
| US20110054402A1 (en) | 2011-03-03 |
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